中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Contrast research on interpolation and subpixel imaging in CCD geometric superresolution reconstruction (EI CONFERENCE) 会议论文  OAI收割
1st Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2009, November 19, 2009 - November 21, 2009, Shanghai, China
作者:  
Xu Y.-S.;  Yang S.-W.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
In order to enhance the resolution of Charge Coupled Device (CCD) pixel with the pixel dimension and focal length of optical system unchanged  the problem of CCD geometric superresolution is educed. The problem is discussed in terms of software and hardware. In software  the bicubic interpolation is introduced  while in hardware  the subpixel imaging method is utilized. The subpixel imaging method integrates two uniform linear CCDs staggered by half dimension of pixel in one device. In operation  the line frequency is doubled. At last  the collected data is interweaved to synthesize a high resolution image. The two methods  bicubic interpolation and subpixel imaging  are simulated with Matlab7.0.1. The qualitative and quantitative analyses are given. The simulated results of lanczos and cubic spline interpolation methods are given simultaneously to show the performance of interpolation. The simulation result shows that the result images quality becomes better in both methods  but compared with bicubic interpolation method  the synthesized image PSNR gained from sub-pixel imaging is averagely enhanced by 2.1682dB  while the elapsed time is reduced to be about one forth. The subpixel imaging method could significantly mitigate the image blur introduced by undersample. 2009 IEEE.  
Characterizing spatial distribution and sources of heavy metals in the soils from mining-smelting activities in Shuikoushan, Hunan Province, China EI期刊论文  OAI收割
2009
作者:  
Wei Chaoyang;  Yang Linsheng
收藏  |  浏览/下载:21/0  |  提交时间:2012/06/11
Generating time-series grid data of sea surface temperature from isotherms in the Northwestern Pacific Ocean using coupled interpolation 期刊论文  OAI收割
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, 2007, 卷号: 54, 期号: 4, 页码: N5&
Shao, Q. Q.(邵全琴); Rong, K.; Ma, W. W.; Chen, Z. Q.
收藏  |  浏览/下载:16/0  |  提交时间:2011/06/10
Generating time-series grid data of sea surface temperature from isotherms in the Northwestern Pacific Ocean using coupled interpolation SCI/SSCI论文  OAI收割
2007
Shao Q. Q.; Rong K.; Ma W. W.; Chen Z. Q.
收藏  |  浏览/下载:33/0  |  提交时间:2012/06/08